User user8960

6 votes

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I don't understand the truth table for logical consequence $(a \rightarrow b)$

answered Oct 18, 2016 at 20:36

4 votes

Is $C^1[a,b]$ separable space?

answered Sep 27, 2016 at 20:55

3 votes

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Convergence of Complex Sequence

answered Sep 21, 2016 at 0:22

3 votes

A confusion on a Theorem

answered Oct 4, 2016 at 19:00

3 votes

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Verification Proof of Discontinuity of Sine Function at x=0

answered Oct 21, 2016 at 18:47

3 votes

Let $f : [0,1] \rightarrow \mathbb{R}$ be continuous. Show that there exists $\psi \in [0,1]$ with $f(\psi) = 0$

answered Oct 21, 2016 at 19:54

3 votes

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Show that a certain group is normal

answered Oct 24, 2016 at 18:15

2 votes

Confused about why these two integrals are equal (Measure Theory)

answered Oct 7, 2016 at 18:25

2 votes

Does the order always matter in a statement with qualifiers?

answered Oct 13, 2016 at 18:16

2 votes

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Direct sum of two subspaces of a vector space

answered Oct 6, 2016 at 17:41

2 votes

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Is this basic understanding of a representation correct?

answered Oct 26, 2016 at 20:32

2 votes

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Show that the function $g(x)=2-\sin(x)$ is a contraction on the interval $[\frac{\pi}{6},\frac{\pi}{2}].$

answered Sep 27, 2016 at 20:47

1 vote

What are the most interesting limit problems you've run into?

answered Oct 28, 2016 at 17:18

1 vote

Construct a sequence that satisfies the following property.

answered Oct 6, 2016 at 22:35

1 vote

$f:[0,2]\to\mathbb{R}$ continuous, then if $\int_0^x |f(t)| \ dt = \int_x^2 |f(t)| \ dt$ then $f(x) = 0$

answered Oct 5, 2016 at 21:40

1 vote

Notation problem for differential of a function

answered Oct 6, 2016 at 16:00

1 vote

Approximation theory in Banach Spaces.

answered Sep 27, 2016 at 18:05

1 vote

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Show that $\int fd\mu=\infty$ for measurable sets $A$ and $0$ whenever $\mu(A) = 0$

answered Sep 29, 2016 at 22:39

1 vote

This question concerns functions $f:\{A,B,C,D,E\}\rightarrow\{1,2,3,4,5,6,7\}$ (counting)

answered Oct 14, 2016 at 22:41

1 vote

Are there Mathematics exams for university level?

answered Oct 17, 2016 at 21:18

1 vote

Solving $\frac{d^2x}{dt^2} = -x +\frac{A}{x^6}$.

answered Oct 17, 2016 at 22:51

1 vote

Prove that finite unions of compact sets are compact

answered Oct 17, 2016 at 23:12

1 vote

Isometries (reflection matrix) and eigenvectors

answered Oct 7, 2016 at 23:16

1 vote

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Convergence of a series implies convergence of sequence

answered Oct 24, 2016 at 23:14

0 votes

What is the connection between equivalence relations and groups?

answered Oct 26, 2016 at 0:10

0 votes

Why is this set in the complex plane not connected?

answered Oct 19, 2016 at 14:28

0 votes

How to compute the directional derivative of a vector field?

answered Oct 19, 2016 at 20:56

0 votes

Why is $\det(e^A)$ equal to $\det(e^A)$ = $\prod_{i=1}^n e^{\lambda_i}$

answered Oct 17, 2016 at 23:22

0 votes

Axioms of Probability Question

answered Oct 18, 2016 at 19:01

0 votes

Why is this function not a solution to this ODE?

answered Oct 17, 2016 at 21:23

Stack Exchange Network

38 Answers

I don't understand the truth table for logical consequence $(a \rightarrow b)$

Is $C^1[a,b]$ separable space?

Convergence of Complex Sequence

A confusion on a Theorem

Verification Proof of Discontinuity of Sine Function at x=0

Let $f : [0,1] \rightarrow \mathbb{R}$ be continuous. Show that there exists $\psi \in [0,1]$ with $f(\psi) = 0$

Show that a certain group is normal

Confused about why these two integrals are equal (Measure Theory)

Does the order always matter in a statement with qualifiers?

Direct sum of two subspaces of a vector space

Is this basic understanding of a representation correct?

Show that the function $g(x)=2-\sin(x)$ is a contraction on the interval $[\frac{\pi}{6},\frac{\pi}{2}].$

What are the most interesting limit problems you've run into?

Construct a sequence that satisfies the following property.

$f:[0,2]\to\mathbb{R}$ continuous, then if $\int_0^x |f(t)| \ dt = \int_x^2 |f(t)| \ dt$ then $f(x) = 0$

Notation problem for differential of a function

Approximation theory in Banach Spaces.

Show that $\int fd\mu=\infty$ for measurable sets $A$ and $0$ whenever $\mu(A) = 0$

This question concerns functions $f:\{A,B,C,D,E\}\rightarrow\{1,2,3,4,5,6,7\}$ (counting)

Are there Mathematics exams for university level?

Solving $\frac{d^2x}{dt^2} = -x +\frac{A}{x^6}$.

Prove that finite unions of compact sets are compact

Isometries (reflection matrix) and eigenvectors

Convergence of a series implies convergence of sequence

What is the connection between equivalence relations and groups?

Why is this set in the complex plane not connected?

How to compute the directional derivative of a vector field?

Why is $\det(e^A)$ equal to $\det(e^A)$ = $\prod_{i=1}^n e^{\lambda_i}$

Axioms of Probability Question

Why is this function not a solution to this ODE?